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Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells
Smart combination of manifold carbonaceous materials with admirable functionalities (like full of pores/functional groups, high specific surface area) is still a mainstream/preferential way to address knotty issues of polysulfides dissolution/shuttling and poor electrical conductivity for S-based ca...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Singapore
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770776/ https://www.ncbi.nlm.nih.gov/pubmed/34138150 http://dx.doi.org/10.1007/s40820-020-00484-4 |
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author | Li, Ning Meng, Ting Ma, Lai Zhang, Han Yao, JiaJia Xu, Maowen Li, Chang Ming Jiang, Jian |
author_facet | Li, Ning Meng, Ting Ma, Lai Zhang, Han Yao, JiaJia Xu, Maowen Li, Chang Ming Jiang, Jian |
author_sort | Li, Ning |
collection | PubMed |
description | Smart combination of manifold carbonaceous materials with admirable functionalities (like full of pores/functional groups, high specific surface area) is still a mainstream/preferential way to address knotty issues of polysulfides dissolution/shuttling and poor electrical conductivity for S-based cathodes. However, extensive use of conductive carbon fillers in cell designs/technology would induce electrolytic overconsumption and thereby shelve high-energy-density promise of Li–S cells. To cut down carbon usage, we propose the incorporation of multi-functionalized NiFe(2)O(4) quantum dots (QDs) as affordable additive substitutes. The total carbon content can be greatly curtailed from 26% (in traditional S/C cathodes) to a low/commercial mass ratio (~ 5%). Particularly, note that NiFe(2)O(4) QDs additives own superb chemisorption interactions with soluble Li(2)S(n) molecules and proper catalytic features facilitating polysulfide phase conversions and can also strengthen charge-transfer capability/redox kinetics of overall cathode systems. Benefiting from these intrinsic properties, such hybrid cathodes demonstrate prominent rate behaviors (decent capacity retention with ~ 526 mAh g(−1) even at 5 A g(−1)) and stable cyclic performance in LiNO(3)-free electrolytes (only ~ 0.08% capacity decay per cycle in 500 cycles at 0.2 A g(−1)). This work may arouse tremendous research interest in seeking other alternative QDs and offer an economical/more applicable methodology to construct low-carbon-content electrodes for practical usage. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00484-4) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-7770776 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Singapore |
record_format | MEDLINE/PubMed |
spelling | pubmed-77707762021-06-14 Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells Li, Ning Meng, Ting Ma, Lai Zhang, Han Yao, JiaJia Xu, Maowen Li, Chang Ming Jiang, Jian Nanomicro Lett Article Smart combination of manifold carbonaceous materials with admirable functionalities (like full of pores/functional groups, high specific surface area) is still a mainstream/preferential way to address knotty issues of polysulfides dissolution/shuttling and poor electrical conductivity for S-based cathodes. However, extensive use of conductive carbon fillers in cell designs/technology would induce electrolytic overconsumption and thereby shelve high-energy-density promise of Li–S cells. To cut down carbon usage, we propose the incorporation of multi-functionalized NiFe(2)O(4) quantum dots (QDs) as affordable additive substitutes. The total carbon content can be greatly curtailed from 26% (in traditional S/C cathodes) to a low/commercial mass ratio (~ 5%). Particularly, note that NiFe(2)O(4) QDs additives own superb chemisorption interactions with soluble Li(2)S(n) molecules and proper catalytic features facilitating polysulfide phase conversions and can also strengthen charge-transfer capability/redox kinetics of overall cathode systems. Benefiting from these intrinsic properties, such hybrid cathodes demonstrate prominent rate behaviors (decent capacity retention with ~ 526 mAh g(−1) even at 5 A g(−1)) and stable cyclic performance in LiNO(3)-free electrolytes (only ~ 0.08% capacity decay per cycle in 500 cycles at 0.2 A g(−1)). This work may arouse tremendous research interest in seeking other alternative QDs and offer an economical/more applicable methodology to construct low-carbon-content electrodes for practical usage. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00484-4) contains supplementary material, which is available to authorized users. Springer Singapore 2020-07-11 /pmc/articles/PMC7770776/ /pubmed/34138150 http://dx.doi.org/10.1007/s40820-020-00484-4 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Li, Ning Meng, Ting Ma, Lai Zhang, Han Yao, JiaJia Xu, Maowen Li, Chang Ming Jiang, Jian Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title | Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title_full | Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title_fullStr | Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title_full_unstemmed | Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title_short | Curtailing Carbon Usage with Addition of Functionalized NiFe(2)O(4) Quantum Dots: Toward More Practical S Cathodes for Li–S Cells |
title_sort | curtailing carbon usage with addition of functionalized nife(2)o(4) quantum dots: toward more practical s cathodes for li–s cells |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770776/ https://www.ncbi.nlm.nih.gov/pubmed/34138150 http://dx.doi.org/10.1007/s40820-020-00484-4 |
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